Tooth holder



J. H. HAMMANN June 3 1924;

TOOTH HOLDER Filad Aug. 2l, 1922 Patented .Func l3, 1924?.

1,496,412 PATENT OFFICE'.

JOI-IN H. HAMMANN, OF TOTTENVILLE, NEW YORK, .ASSIGNOR TO THE S. S. WHITE DENTAL MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

TO'OTH HOLDER.

Application fue'd August 21, 1922. serial No.`5'sa,12o.

To all whom t may conccrng Y Be it known that I, JofiN H. HAMMANN, a citizen of the United States', anda resident of Tottenville, in the county of Richmond, State of New York, haverinvented certain new and useful Improvements in Tooth Holders, of which the following is aspeciication, reference beingv had to the accon'r panying drawings. f v My invention relates lparticularly to that class of devices upon `which a toothfgrnaybe supported, and employed by dentistsindetermining, by comparison, the particular shade, form and size of artilicial stock teeth orfacings that may best be substituted for the natural teeth of the patient 4so as to most nearly conform tothe teeth of the patient with which said stock teeth or facings areto be associated, and is especially directedpto means' for detachably Yengaging the teeth to be supported thereby. Y

. y VThe principal object of my invention is to provide a tooth-holder `withwhich different teeth may readily-be detaohably engaged and be thrust thereby into the mouth of the patient in such position as to be most convfenientlj7 compared with the teeth in the patients mouth, to determineL the form, size and shade of stock teethor facings that are best adapted to be associated therewith. Other objects of my invention are to provide a tooth-holder having means for detachably engaging an e artificial tooth and permitting it to be rotated thereon into dfferent positions with respect thereto, and to .so engage said tooth as to cause ,it to be tipped, when thrust thereon to the limitof its lineal movement, which in effect tends to secure it against accidental displacement.

invention comprehends a tooth-holder having a yielding support for artificial teeth, whereby the tooth supported thereon is frictionally engaged to prevent its accidentalr displacement.

My invention further includes a tooth` holder which is of such simplified construction as to be economically produced, and which may be readily sterilized'.

Specifically stated, the form of my invention, as hereinafter described, comprises a tooth-holder having a handle whose forward end is extended obliquely, and provided with an integral spring tang punched therefrom and carrying a headed projection arranged to engage the undercut walls of an artificial tooth, and thereby frict'ionally en gage the lingual surface of said tooth with the obliquely directed free' end of said handle. .Y if e 4 j ,j

My invention also include sy all of the vari; ous novel features of construction and arrangement as hereinafter more definitely specied. n j v ,n n .n

In the .accompanying drawings, pFiguren1 is a perspective view of atooth-holder con"- is a longitudinall sectional view of fsaid toothholder and the tooth facingy taken on theline-l-tin Fig.` 3 Fig. 5 is a longitudi nal-sectional view of a modified form of tooth-holder; Fig. y6 is a longitudinal'sectional view of another'modified form' 'of tooth-holder; and Fig. 7 isa fragmentary sectional view showing how the tooth is` applied to the tooth-holder. x v 4 In the form of my invention shown in Figs. 141 inclusive, the handle 1 having itsV forward end extended obliquely to provide the vseat 2 for the tooth facingy 3, has the spring tang 5 punched outwardly fromsaid seat and provided with the projectionfor pin 6, having the head 7 extended through the opening 9 which is formedin said` seat by punching the spring tang therefrom.

The opening p9 forms the lateral'bars 10 of the seat 2, uponv which the lingual surface of the tooth facing 3 is arranged to rest, and against which it is frictionally held by the spring tang 5 whose headed pin V6 is arranged to extend through the slot 12 in the tooth facing 3,r while its head 7 engages the undercut walls 13 kof the recess 15 Yin said tooth facing 3. In this form of Vmyinvention, the spring tang 5 is punched clear of the plane of the obliquely extended end 'of the handle forming the seat l2, and extends onset, substantially kparallel therewith, preferably joining the handleI by an ogee curve as best shown at 16 in Figs. 4 andv 7, and while the headed pin or projection 6 is shown as being riveted at 17 to said spring tang, it is obvious that it might be otherwise connected in any convenient and wellknown manner.

In the form of my invention shown in Fig. 5, the handle 19 has its forward end .6.5 s tructed in accordance with my invention;

extended obliquely to form the seat 20, and has the spring tang 2l punched therefrom and provided with the headed pin or projection 22 arranged to frictionally engage the tooth facing 23 with the seat 20. In this form of my invention, the tang 21 does not have the ogee curve, such as shown in Fig. 4, but merges from the seat, inclining backwardly therefrom toward its free end.

v In the form of my invention shown in Fig. 6the handle 25 has its forward end extended obliquely to'formv the seat 26, against which the tooth facing 27 is held by the headed pin 28 which is carried by the spring vtang 29. In this form of my invention the spring tang 29 may be separately formed and secured by riveting, welding or in any suitable. manner to the obliquely extended end ofthe handle 25. Said headed pin 28,

vwhich isY carried by said spring tang 29, ex-

tends through a suitably provided opening 30 in theseat 26, to engage said tooth facing 27fas shown.

Y As best shown in Fig. 7, the tooth facing, which is provided with a ridge-lap 31, shut surface 32 and a bite bevel 33, is convenientlyengaged with the seat of the tooth-holder,

by riding the shut surface 32 on the yparallel lateral bars 10 of the seat 2, until the pin or projection 6 reaches the end of the slot 12.

kThe engagement of the pin or projection 6 with the end of the slot 12 causes said tooth facing to teeter on the angle formed by the intersection ofthe shut surface 32 and bite bevel 33 and to assume the position shown in Fig. 4f, wherein the bite bevel 33 'engages the parallel bars 10 forming the seat 2, and the'undercut walls 13 of the tooth facing assume the plane of the liat under surface of the head 7, whereby said tooth facing is in effect snapped into its operative position and yieldingly retained against accidental displacement.

It will be noted that while I have shown .the tooth held with its incisal edge 35 disposed toward the handle 1, it may be rotated on the headed pin 6, so that the ineisal edge 35 will be oppositely disposed away from the handle, as shown in dotted lines in Fig.

j 3, or it may be disposed obliquely toward the left, as shown by the dash lines in Fig. 3, or it may be disposed toward the right of said handle, as shown in dot and dash lines in` said figure, or it may assume any position within the circle of rotation.

It will be obvious that the tooth facing thus held by the tooth-holder may be conveniently thrust into the patients mouth in close proximity to the teeth therein, so that accurate comparison may be made as to the color or shade, the size and the form of tooth best adapted to be associated with the teeth in the patients mouth.

I do not desire to limit my invention to the precise details of construction and arrangement as herein set forth, as it is obvious that various modifications may be made therein without departing from the essential features of my invention as defined in the appended claims.

Having thus described my invention, I claim:

1. A device of the class described, comprising a handle having its forward end extended obliquely to provide a seat for an artificial tooth, and having a spring tang punched therefrom and provided with means to detachably engage said tooth in frictional'contact with said seat.LV

2. A device of the class described, coinprising a handle affording a seat for an artiicial tooth, and having a spring tang extended from the plane of said seat arranged to rotatably support said tooth in frictional engagement with said seat. v

' 3. A device of the class described, comprising a handle having its forward endI extended obliquely to afford a seat for an artiy icial tooth, and provided with a spring tang extended from the plane of said seat having a headed projection arranged to detachably engage said tooth with said seat in rotatable relation therewith.

4. A device of the class described, comprisinga handle having its forward end extended obliquely to provide aseat for an artificial tooth, and having a spring tang havj ing'a headed projection punched from said seat and affording an opening therein through which said headed projection on saidl tang may extend to yieldingly engage said tooth with said seat.

5. A device of the class described, comprising a handle having a seat for an artiticial tooth, said seat being provided with an aperture, and a spring tang having means extended through said aperture and arranged to yieldingly engage said artificial tooth with said seat, by a pulling action.

In witness whereof, I have hereunto set my hand'this 31st day of July, A. D., 1922.

JOHN H. HAMMANN.

Witnesses:

GEORGE H. BRowNE, RoBEn'r C. ANGELL. 

